Apparatus for rolling metal



P atented- May 23, I899.

m. .1. LOUGHRAN. APPARATUS FOR ROLLING METAL.

3--Sheets-Sheet l.

(Application filed May 12, 1898) (No Model.)

, iiiiiiiiL WM RN No. 625,575. Patented May 23, I899.

M. J. LOUGHBAN.

APPARATUS FOR ROLLING METAL,-

(Application filed Kay 12, 1598.

3 Sheets-Sheet 2.

(No Model.)

Ir II Ill m. .1. LOUGHRAN.

APPARATUS FOR ROLLING METAL.

Patented May 23, I899.

(Application filed may 12, 1 595.)

3 Sheets-Sheet a.

(No Model.)

NVENTOR WITNESSES UNITED STATES A PATENT OFFICE.

. APPARATUS FOR ROLLING METAL.

SPECIFICATION forming part of Letters Patent No. 625,575, dated May 23,1899.

Application filed May 12, 1898.

' of Pittsburg, in the county of Allegheny and State of Pennsylvania,have invented a new and useful Improvement in Apparatus for RollingMetal, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings,

forming part of this specification, in which- Figures 1 and 2 are sideelevations of the platens employed in my apparatus, showing theirpositions before and after their action upon the metal. Fig. 3 is across-seotionon the line III III of Fig. 1. Fig. lis a perspective viewshowing one of the platens. Fig. 5 is a partial plan view correspondingto Fig. 1. Fig. 6 is a similar view after the metal is partially rolled.Fig. 7 is a sectional elevation of one end portion of the machine. Fig.8 is a cross-section on the line VIII VIII of Fig. 7, looking toward theleft; and Fig. 9 is a detail view showing one of the supporting ringsand the stop detached.

My invention relates to the rolling of metal articles-=sueh as axles,flanged nuts, coupling-pins, large screw-blanks, &c.'wherein the endportion is of different cross-section from that of the body or rounds,where some portion is larger than the blanks from which the article isto be made; and its object is to provide a new and improved apparatus bywhich one or both end portions of the article are rolled into thedesired shape while the body is supported in a rotatory holder.

To that end it consists in a pair of platens, which may be either fiatplatens or in the roller-and-concave form, in combination with arotatory socket in which the metal is held while its end portion isacted upon by the platens, together with means for rotating the 4holder, as well as in providing a forming-recess in the holder, intowhich the metal is forced by the platens.

It consists, further, in the construction and arrangement of the parts,as hereinafter more fully described, and set forth in the claims.

In the drawings, in which Ihave shown one end portion of my apparatus asapplied to the rolling of axles, 2 2 represent a pair of hous- 5o ingsplaced parallel to each other and form- Serial No. 680,481. (No model.)

ing a part ofone end of the machine. Each of these housings is providedwith inner supports and guides 3 for a pair of platens 4 and 5, whichare moved therethrough by screws or worms 6, engaging suitable teethupon the rear faces of the platen. of each platen is inclined inopposite directions, as shown at a a in Fig. 4, these inclines leadingto an intermediate horizontal plane portion 12. Theplatens are supportedso as to leave the necessary space between their forming-faces, andtheir outer sides are closed by the removable blocks or strips 7 7, theinner faces of which are beveled and also in clined in oppositedirections, as shown in Fig. 3.

A rotatory holder 8 for the article is support- 'ed at a point midwaybetween the housings in a bearing carried in suitable supports 9, theend of this holder being closely adjacent to the inner edges of theplatens and being enlarged to form a head 10, containing a recess ofgreater diameter than the width of the forming-space between theplatens. The lower bearing 11 is movable vertically, being guided at itsends by suitable ribs 12, and is moved by a bell-crank lever 13,actuating a shaft 13, the end of which forms the joint of a togglelevercomposed of two links 14 and 15, the upper of which is pivotallyconnected to the bearing 11, while the lower is pivoted at a fixed point16. The joint between the two links is formed by a shaft 17, whichextends to the other side of the machine, such side portion being thesame in construction as that shown.

The holder is made in the form of a split sleeve,

being divided into two parts, and to it, inside of the housing at eachend, is secured a twopart supporting-collar 18, each half having alaterally-projecting flange 19 in the shape of an arc of a circle, asshown in Fig. 9. The j unoture of the two parts is cut away at one side,as shown at 20, to form a recess, into which a stop 21 may be movedbymeans of a bell-crank lever '22, loosely connected to it. When theholder is stopped in this position, the partingbetween the two portionsof the holder will be horizontal and the upper flange 19 will be above aprojecting lug or lip 23 upon the housing. When the lower bearings Theforming-face .11 at each side of the machine are lowered,

so as to open the holder, these cooperating flanges and lugs will holdthe upper part of the rotatory holder from dropping down. A similar lugor lip 24 may be placed below the holder and will act to steady theparts and also to draw down the lower half of theholder when the bearingis lowered. The holder is positively rotated by a splitwheel 25, each toreceive the article is of square or other angular cross-section to fitthe body of the article, or in case of a round being placed in theholder the piece will rotate under the action of the platens, and afterthe lower bearings are dropped and the article inserted within theholder these bearings are lifted,

so as to close the holder upon the body of the article, which is thussecured therein with its ends between the platens. The platens being inthe position shown in Fig. 1, the

screw-shafts are actuated simultaneously by connecting-gearing, so as tomove the platens in opposite directionslongitudinally to each other. Atthe same time the holder is rotated by its connecting-gearing, and asthe metal is acted upon by the platens it is reduced in size, and theinclined faces at the outer ends of the matrix-cavities force-thesurplusage of metal back into the recesses in the heads of the holder.This action proceeds until each end of the axle-blank is formed into around, and the collars are formed between these cylindrical end portionsand the body within the recesses in the head. When the centralhorizontal faces of the platens register with each other, as shown inFig. 2, the operation is complete, and the platens then moving on in thesame directions as before will release the blank, as the cavitygradually enlarges by the platens reaching the opposite position to thatshown in Fig. 1. The bearings for the holder then being dropped, theaxle is pulled out endwise and another blank being inserted and thebearings again raised to place the platens are driven in the oppositedirection to that employed upon the former blank, thus giving the sameaction upon the blank in place.

If desired, after the rolling operation the motion of the platens maybere- A single pair of platens may be used where only one end of anarticle is to be shaped, the shape of these platens may be varied asdesired, the holder may be allowed to rotate without positive means forcausing such rotation, and the shape of the holder and means forsupporting it may be changed, and other variations in the apparatus maybe made by those skilled in the art without departing from my invention,since What I claim is-' 1. The combination witha rotatorysocket orholder having an angular cavity arranged to receive metal of angularcross section, of mechanism for positively rotating the holder, a pairof platens arranged to act upon the projecting end portion of the metalheld in the socket, and mechanism for moving at least one of the platenslongitudinally past the other while operating upon the metal; substantially as described. 7

2. The combination with a socket or holder having a forming-recess, of apair of platens arranged to act upon the projecting end portion of metalheld in the socket and force the metal into the forming-recess, andmeans for moving at least one of the platens longitudinally past theother while operating upon the metal; substantially as described.

3. The combination with a socket or holder having a forming-recess, of apair of platens arranged to act upon the projecting end por tion ofmetal held in the socket and force the metal into the forming-recess andmeans for moving the platens longitudinally of. each other;substantially as described.

4. The combination with a socket or holder, of a pair of platens havinginwardly-projects ing portions with inclined faces arranged to force themetal toward the holder and mechanism for moving the platenslongitudinally of each other; substantially as described.

5. The combination with a split sleeve or socket having an angularcavity arranged to hold a bar of metal of angular cross-section,- saidholder being rotatably supported, of a pair of platens arranged to actupon the pro jecting end portion of the metal in the holder and meansfor moving at least one of the platens longitudinallyof the other;substantially as described.

6. The combination with a split sleeve having an angular cavity, and .aforming-recess at the end of the cavity, of a pair of platens havinginwardly-proj ectin g portions arranged to act upon the end of the metaland force it into the forming-recess and means for moving the platenslongitudinally of each other; substantially as described.

7. The combination with a split sleeve arranged to contain a bar ofmetal, of means for clamping the parts of the sleeve together about thebar, hearings in which the sleeve is rotatably mounted, platens arrangedto act I upon the projecting end portion of the metal held in the sleeveand means for moving the rnetalheld in the sleeve; substantially asdeplatens longitudinally of each other; substanscribed. IO tially asdescribed. In testimony whereof I have hereunto set 8. The combinationwith a split sleeve romy hand. 5 tatably supported in bearings, of meansfor M. J. LOUGHRAN.

lowering the hearings to separate the portions Witnesses: of the sleeve,and a pair of platens arranged L. A. CONNER, J r.,

to act upon the projecting end portions of the G. B. BLEMMING.

